The Saturday evening attack, in which three attackers in a van mowed down a number of pedestrians on London Bridge and then stabbed many more at nearby Borough Market before being gunned down by police, comes just four days before Britain's national election on Thursday.

In her 2005 book "Los Demonios del Eden" (The Demons of Eden), Lydia Cacho exposed pedophile rings in Mexico operating under the protection of politicians and business leaders. A total of 126 reporters have been killed since 2000 in Mexico, one of the most dangerous countries in the world for journalists to work.